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5%+ stakes · Schedule 13D and 13G

Black Hawk Acquisition Corp: 5%+ holders

Who has reported owning 5% or more of Black Hawk Acquisition Corp, from Schedule 13D and 13G filings: each holder's stake as filed, the timeline, and the purpose each 13D states, quoted.

At 5% or more4
Filings8
Latest filing2025-11-14

Black Hawk Acquisition Corp has 8 Schedule 13D or 13G filings on record since 2025-08-07. 4 holders' latest filing reports 5% or more of ordinary shares, par value $0.0001 per share (the "ordinary shares"). Each figure below is the holder's own, as filed, with the filing linked.

Holders

HolderPercentSharesLatestEvent date
Wolverine Asset Management LLC8.64%358,888SCHEDULE 13G, 2025-10-102025-09-30
Mizuho Financial Group, Inc.8.4%750,000SCHEDULE 13G/A, 2025-08-132025-06-30
W. R. Berkley Corporation7.4%308,584SCHEDULE 13G/A, 2025-11-102025-09-30
Kerry Propper5.8%240,999SCHEDULE 13G/A, 2025-11-132025-09-30
AQR Capital Management, LLC3.36%139,365SCHEDULE 13G/A, 2025-11-122025-09-30
Karpus Management, Inc.0%0SCHEDULE 13G/A, 2025-08-072025-07-31
First Trust Merger Arbitrage Fund0%0SCHEDULE 13G/A, 2025-11-142025-09-30

Timeline

FiledHolderPercentFiling
2025-08-07Karpus Management, Inc.0%SCHEDULE 13G/A
2025-08-08W. R. Berkley Corporation5.2%SCHEDULE 13G
2025-08-13Mizuho Financial Group, Inc.8.4%SCHEDULE 13G/A
2025-10-10Wolverine Asset Management LLC8.64%SCHEDULE 13G
2025-11-10W. R. Berkley Corporation7.4%SCHEDULE 13G/A
2025-11-12AQR Capital Management, LLC3.36%SCHEDULE 13G/A
2025-11-13Kerry Propper5.8%SCHEDULE 13G/A
2025-11-14First Trust Merger Arbitrage Fund0%SCHEDULE 13G/A

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Where this comes from

Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.

Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.

Cite this page

Permanent URL: https://mentionfox.com/stakes/black-hawk-acquisition
Last updated 2026-09-27
Primary record: SEC filing 1 · SEC filing 2 · SEC filing 3 · SEC filing 4
Black Hawk Acquisition Corp 5%+ holders: 4 at 5% or more, largest Wolverine Asset Management LLC 8.64%. MentionFox, 2026-09-27. https://mentionfox.com/stakes/black-hawk-acquisition